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- Biglarnia, Ali-Reza, 1973-
(författare)
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Minimizing Risks and Morbidity in Live Kidney Donors
- 2010
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Live kidney donors are healthy volunteers who are exposed to major surgical procedure and physical harms with no direct therapeutic benefits. Efforts to minimize their risks and morbidity are therefore of utmost importance. The current thesis describes studies on donor evaluation, surgical procedure and postoperative management of live kidney donors. The overall purpose is to evaluate and possibly improve routines and treatments in order to reduce risks and the overall morbidity of live kidney donors. In Study I, we evaluated the assessment of kidney function during donor evaluation and found that the accuracy of iohexol glomerular filtration rate (GFR) is compromised by large variations in repeated measurements in presumably healthy donors. We proposed that there is a need for improvement of GFR measurements and that the assessment of predonation kidney function should be more comprehensive, involving GFR, laboratory investigations, functional and morphological examinations and sound clinical judgment. In Study II, we addressed the risk of perioperative venous thromboembolism (VTE) and concluded that expanding the standard screening protocol for VTE to include perioperative venous duplex can potentially decrease the VTE-related morbidity. In studies III and IV, we investigated the impact of hand-assisted retroperitoneoscopic (HARS) nephrectomy on donor safety and perioperative morbidity. The HARS nephrectomy uses the hand-assisted approach, which enables immediate manual compression for hemostasis in case of sudden and severe bleeding. Additionally, the pure retroperitoneal access further increases the safety margin of laparoscopic donor nephrectomy by 1) minimizing the risk of intestinal injury, and 2) exposure of the retroperitoneal nerves, making HARS suitable for continuous infusion of local anesthetics (CILA). CILA effectively reduces the need for opioid consumption and has the potential to totally obviate opiate analgesics postoperatively. Consequently, CILA in combination with HARS reduces morphine-related morbidity and promotes postoperative recovery. In accordance with these data, we recommend improvement and modification of the donor evaluation process as well as a broad introduction of HARS nephrectomy in combination with CILA to increase the safety margin for live kidney donors.
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- Castedal, Maria, 1964, et al.
(författare)
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Long-term follow-up of living liver donors.
- 2010
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Ingår i: Transplantation proceedings. - : Elsevier BV. - 1873-2623 .- 0041-1345. ; 42:10, s. 4449-54
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Tidskriftsartikel (refereegranskat)abstract
- At our center living donor liver transplantation (LDLT) represents 4% of all transplantations. The aim of this cross-sectional study was to clarify the current well-being of the donors, their experiences of being a donor, as well as the regenerative capacity of the liver.
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- Elinder, Carl-Gustaf, et al.
(författare)
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Variations in graft and patient survival after kidney transplantation in Sweden: caveats in interpretation of center effects when benchmarking.
- 2009
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Ingår i: Transplant international : official journal of the European Society for Organ Transplantation. - : Frontiers Media SA. - 1432-2277 .- 0934-0874. ; 22:11, s. 1051-7
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Tidskriftsartikel (refereegranskat)abstract
- Benchmarking and comparisons between transplantation centers are becoming more common. A crude comparison indicated a 50% difference in patient survival between centers in Sweden. A 'task group' was formed to refute or confirm and learn from this observation. Patient survival and graft survival of 5 933 patients transplanted at three different transplantation centers in Sweden (Stockholm, Göteborg, and Malmö) were followed up until February 2007. Patient survival and graft survival were compared between the centers with and without consideration being given to important covariates such as time period, type of donation (living or deceased donor), gender, and age. A refined cohort of 2,956 adult patients that had been transplanted for the first time between 1991 and 2007 was assessed in more detail using Cox regression analysis. The difference in patient and transplant outcome observed in the crude comparison diminished considerably after adjustment for differences in case mix and time period of transplantation, and was neither evident nor significant after 1999. Patient survival and graft survival have improved considerably during the time period since 1991. The adjusted hazards ratio for mortality was 0.39 (95% CI 0.29-0.53) for patients who were transplanted after 1999 when compared with those transplanted between 1991 and 1994. Crude comparisons between results from transplantation centers may be severely confounded not only by case mix but also by differences in the proportion of patients transplanted during different time periods. Patient outcome and graft outcome have improved considerably since 1991, and after 1999 center effects were no longer apparent in Sweden.
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- Fehrman-Ekholm, Ingela, 1947, et al.
(författare)
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Incidence of end-stage renal disease among live kidney donors.
- 2006
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Ingår i: Transplantation. - : Ovid Technologies (Wolters Kluwer Health). - 0041-1337. ; 82:12, s. 1646-8
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: The increasing use of living kidney donors requires knowledge about long-term effects, especially number and causes of donors with end-stage renal disease (ESRD). METHODS: A retrospective data analysis of 1,112 consecutive living kidney donors who underwent nephrectomy from 1965 until 2005 at Sahlgrenska University Hospital. Case reports were sought with help from nephrologists in the region and data from Swedish Registry of Active Uremic Treatment (SRAU). RESULTS: The number of cases with end stage kidney failure among living kidney donors was 6/1112, that is 0.5%. The donors had reached ESRD during the years 2001-2006, that means 36-41 years after start of the living donor program. The donors were 45-89 years old, median 77 years, and five of six were males. Time since donation was 14-27 years, median 20 years, for the donors developing ESRD. The diagnoses were nephrosclerosis (4 cases), postrenal failure (1 case), and renal carcinoma (1 case). The expected incidence for development of ESRD according to incidence in the general population would have been two donors but we found six. However, considering the high age of the donors in this follow up, the age-matched incidence is calculated to be closer to six donors due to higher incidence in the aged. CONCLUSION: In all 0.5% of the donors developed ESRD. Due to high age of the uremic donors, there seems to be no increased incidence.
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5. |
- Fehrman-Ekholm, Ingela, 1947
(författare)
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Living donor kidney transplantation
- 2006
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Ingår i: Transplant Proc. - : Elsevier BV. - 0041-1345. ; 38:8, s. 2637-41
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Tidskriftsartikel (refereegranskat)abstract
- Living donor kidney transplantation is the optimum treatment for the uremic patient. Successful kidney transplantations started in 1953 in Boston and in Sweden in 1964. This article showed data on the selection of the donor, surgical techniques for the removal of the kidney, and follow-up of short-term complications. The long-term results included the number of donors who developed hypertension and the few donors who developed end-stage renal failure (ESRF) and the reasons for this. Finally, new groups of donors such as blood group-incompatible donors and anonymous donors have been accepted, each of whom have their own programs. This article also discussed our responsibilities as renal specialists or transplant surgeons for kidney donors at surgery and postsurgery.
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- Fehrman-Ekholm, Ingela, 1947, et al.
(författare)
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Living kidney donors developing end-stage renal disease
- 2006
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Ingår i: Transplantation proceedings. - : Elsevier BV. - 0041-1345. ; 38:8, s. 2642-3
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Tidskriftsartikel (refereegranskat)abstract
- The incidence of end-stage kidney failure (ESRF) was analyzed among the cohort of 1112 living kidney donors who underwent nephrectomy from 1965 through 2005. It was found that at least six persons had developed ESRF at 14 to 27 years (median = 20 years), following donation. Five of six were men. Five were parents and one, a sibling. The diagnoses were nephrosclerosis (n = 4), postrenal failure (n = 1), and renal carcinoma (n = 1). One donor, aged 45 years, underwent kidney transplantation.
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10. |
- Fehrman-Ekholm, Ingela, 1947, et al.
(författare)
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Post-nephrectomy development of renal function in living kidney donors: a cross-sectional retrospective study
- 2011
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Ingår i: Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association. - : Oxford University Press (OUP). - 1460-2385 .- 0931-0509. ; 26:7, s. 2377-2381
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Increasing numbers of living donor kidney transplantations calls for better knowledge about long-term donor outcomes and risks. METHODS: To explore long-term kidney donor outcomes and risks, we conducted a cross sectional retrospective study. To this end, we analysed renal function using measured glomerular filtration rate (mGFR) and estimated glomerular filtration rate (eGFR) as well as microalbuminuria, blood pressure (BP), body mass index, haemoglobin, albumin and parathyroid hormone in kidney donors nephrectomized between 1965 and 2005. RESULTS: A total number of 573 kidney donors agreed to undergo medical follow-up examinations. The mean age (standard deviation) at donation was 47 (11) years and the mean time since donation was 14 (9) years. Both mean mGFR [68 (15) mL/min/1.73m(2) body surface; P = 0.028] and mean eGFR [71 (16) mL/min/1.73m(2) body surface; P < 0.001], based on modified diet renal dysfunction and iohexol or Cr-EDTA clearance, respectively, were found to decrease with age and to increase with time since donation. Special multivariable regression analyses reveal that for 30-year old donors, the median eGFR typically increases during the first 17 years, then remains constant for ∼8 years and slowly declines thereafter. For 50-year-old donors, the median eGFR is expected to increase during the first 15 years or so and then to enter a phase of slight progressive decline. In total, 23% (126/546) of the donors were on antihypertensive medication. An additional 22% (117/543) of the donors were found to suffer from hitherto undiagnosed hypertension (BP >140/90 mm Hg). CONCLUSION: Renal function of the remaining kidney in living donors is expected to improve for many years but will show signs of slight deterioration in the longer run.
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